John g



(No ModeL) J. G. LINDEMANN.

CHIMNEY TOP.

No. 263,793. 7 Patented Sept.5,f 1882.

fiivezazorn UNITED STATES JOHN G. LINDEMANN,

PATENT OFFICE.

OF NEW YORK, N. Y.

CHIMNEY-TOP.

SPECIFICATION forming part of Letters Patent No. 263,793, datedSeptember 5, 1882.

Application filed April 5, 1882. (No model.)

To all whom it may concern Be it known that I, JOHN G. LINDEMANN, of NewYork, in the county and State of New York, have invented a new andImproved Chimney-Top, of which the followingis a specification.

Figure 1 is a perspective view of a chimney having three of my improvedchimney-tops placed upon it. Fig. 2 is a side view of my improvedchimney-top; and Fig. 3, a horizontal section on the line 0 c, Fig. 2.

The object of this invention is to produce a superstructure forattachment to ordinary chimneys for the purpose of facilitating thedraft created in said chimneys, especially on buildings near whichtaller structures are erected; and the invention consists of a bent tubehaving rectangular lower portion and outwardlyextending flange abovethis rectangular lower portion, as hereinafter described, the intentionbeing to have the rectangular lower portion enter into the rectangularopening formed in the chimney below the upper course of bricks in thechimney, and the flange to be below said upper course and covered by thesame, all as hereinafter more fully described.

In the drawings, the letter A represents an ordinary chimney, havingrectangular openings a for the escape of the products of combustion froma furnace, range, or stove.

B is my improved chimney-top, the same being a bent tube, made ofcast-iron, clay, or any other suitable material, the pipe being so bentas to have its main-portion extending from the lower end upward, and itsshorter portion extendingfrom the upper end downward, asuitable curve orelbow joining the shorter to the ion ger portion, as shown. Both endsofthis top B are open. The lower end ot'the top H is made angular, asshown at b in the drawings, and above this rectangular lower end, I),there is a flange, 01, formed around the top B. The angular portion b isso shaped and of such size that it will just fit one of the openings aof the chimney, and my idea is to place this rectangular portion b intothe second or third course of brick or stone of which the chimney isbuilt up, from the top of the said chimney, and to then place the uppercourse, e, of brick or stone of which the chimney is made over and abovesaid flange d, as is clearly shown in Fig. 2. By this means thechimney-top will be rigidly held in place, and will, as it graduallyflares from the rectangular to the circular upper portion, gradually andproperly conduct the products of combustion to the bent -upper end ofthe top B, and thence downward into the atmosphere, as shown by arrows.

The invention can also be used on railwaycars.

1 do not claim an attachment for chimneys containing 'oremployingswivel-joints, nor a bent pipe made without the flange d abovethe portion b, as I am aware that structures so disclaimed are not newwith me.

I claim- .lhe chimneytop B, made of continuous pipe with open ends, itsupper end being bent downward and its lower end made with the angularportion b, and with the outwardlyprojecting flange at above said angularportion 1), substantially as and for the purpose specified.

JOHN G. LINDEMANN. Witnesses: v

WILLY G. E. ScHULTz, WILLIAM H. 0. SMITH.

